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Porous Silicon Microparticles for Delivery of siRNA Therapeutics
Published on: January 15, 2015
siRNA Delivery Strategies: A Comprehensive Review of Recent Developments
Katyayani Tatiparti1, Samaresh Sau2, Sushil Kumar Kashaw3,4
1Use-Inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA. katyayani.tatiparti@wayne.edu.
Abstract:
siRNA is a promising therapeutic solution to address gene overexpression or mutations as a post-transcriptional gene regulation process for several pathological conditions such as viral infections, cancer, genetic disorders, and autoimmune disorders like arthritis. This therapeutic method is currently being actively pursued in cancer therapy because siRNA has been found to suppress the oncogenes and address mutations in tumor suppressor genes and elucidate the key molecules in cellular pathways in cancer. It is also effective in personalized gene therapy for several diseases due to its specificity, adaptability, and broad targeting capability. However, naked siRNA is unstable in the bloodstream and cannot efficiently cross cell membranes besides being immunogenic. Therefore, careful design of the delivery systems is essential to fully utilize the potential of this therapeutic solution. This review presents a comprehensive update on the challenges of siRNA delivery and the current strategies used to develop nanoparticulate delivery systems.
Insights
Small interfering RNA (siRNA) offers therapeutic potential for gene regulation in diseases like cancer. Developing effective nanoparticulate delivery systems is crucial to overcome challenges like instability and poor cell membrane crossing.
Area of Science:
- Biotechnology
- Molecular Biology
- Gene Therapy
Background:
- Small interfering RNA (siRNA) acts as a post-transcriptional gene regulator for various diseases, including cancer, viral infections, and autoimmune disorders.
- siRNA's potential in cancer therapy includes suppressing oncogenes and targeting tumor suppressor genes.
- Its specificity and adaptability make it suitable for personalized gene therapy.
Purpose of the Study:
- To provide a comprehensive review of current siRNA delivery challenges.
- To highlight strategies for developing effective nanoparticulate delivery systems for siRNA.
Main Methods:
- Review of existing literature on siRNA delivery systems.
- Analysis of challenges associated with naked siRNA (instability, immunogenicity, poor cell penetration).
- Exploration of nanoparticulate strategies to enhance siRNA delivery.
Main Results:
- Naked siRNA exhibits instability in bloodstream, poor cell membrane permeability, and immunogenicity.
- Nanoparticulate delivery systems are essential for overcoming these limitations.
- Various strategies are being explored to optimize siRNA encapsulation and targeted delivery.
Conclusions:
- Effective siRNA delivery systems are critical for realizing its therapeutic potential.
- Nanoparticulate formulations represent a promising approach to address siRNA delivery challenges.
- Further research into optimized delivery systems will advance siRNA-based therapies.
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